Olympus Partners, through its affiliated investment fund, Olympus Growth Fund IV, L.P. (“ Olympus ”) has invested over $50 million in equity to acquire Professional Service Industries Holding, Inc. (“PSI” or the “Company”) from Bain Capital. PSI, headquartered in Oakbrook Terrace , IL , is a leading provider of construction testing, environmental consulting and geotechnical engineering services . The Company is nationally recognized in several disciplines, including: construction services, materials testing, roof consulting and asbestos management. A leader among independent testing organizations, PSI ranks as one of North America 's largest consulting engineering firms according to Engineering News-Record. The Company provides its services through a network of 125 offices nationwide.

Murray Savage, CEO of PSI, commented, “We are pleased to have Olympus Partners as our new financial partner. We look forward to working with Olympus to drive our growth through a combination of greenfield site development, targeted service extensions and strategic acquisitions.”

Robert Morris, Managing Partner of Olympus , noted, “The team at Olympus is very excited to complete the acquisition of PSI. The Company’s extensive office network, leadership position in its core service offerings and outstanding management team make it a tremendous platform for growth. We believe that the Company’s deep leadership team, working strategically with the Board of Directors, can create tremendous shareholder value.”

Based in Stamford , CT , Olympus Partners is a 15-year-old private equity firm, focused on middle market buyouts and late stage growth capital investments. Olympus is an active, long-term investor committed to creating value for its portfolio companies and capital partners. Olympus manages over $1.7 billion on behalf of corporate pension plans, state retirement systems, university endowment funds and other financial institutions. The Olympus portfolio also includes companies in business services and distribution, healthcare manufacturing and services, financial services, consumer and restaurant and software and IT services.

Mr. Savage will be joined on the Board of Directors of PSI by Mr. Morris, Mr. Lou Mischianti, General Partner of Olympus, Mr. David Cardenas , General Partner of Olympus, and Mr. Manu Bettegowda, Vice President of Olympus.

Kirkland & Ellis, LLP represented Olympus Partners in the transaction. Brookwood Associates, of Charlotte , NC and Atlanta , GA , served as financial advisor for the Company in the transaction.

For further information about PSI, see the Company’s website, www.psiusa.com.

For further information about Olympus Partners see the firm’s website, www.olympuspartners.com, or call Keith Heffernan at (203) 353-5900.

For further information about Bain Capital, please visit www.baincapital.com.